Hi, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for Skyline Luge Rotorua.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
Skyline Luge Rotorua
Valid Reviews
145 Valid Reviews
The Skyline Luge Rotorua experience has a total of 146 reviews. There are 145 valid reviews that are included when calculating the ranking score and 1 invalid review that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Below is the distribution of ratings for the 145 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 40 |
|
28% |
| 9/10 | 47 |
|
32% |
| 8/10 | 36 |
|
25% |
| 7/10 | 17 |
|
12% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.69% Average
The raw data average (mean) for all the Skyline Luge Rotorua valid reviews is 86.69% and is based on 145 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
121 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 145 valid reviews, the experience has 121 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 121 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 31 |
|
26% |
| 9/10 | 38 |
|
31% |
| 8/10 | 34 |
|
28% |
| 7/10 | 13 |
|
11% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.12% Average
The raw data average (mean) for all the Skyline Luge Rotorua face-to-face reviews is 86.12% and is based on 121 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.16%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Christian Paaske | 7/10 | 3180 days | 96% |
| Natasha Startup | 9/10 | 3212 days | 100% |
| Andy | 9/10 | 3217 days | 99% |
| Toby | 10/10 | 3223 days | 100% |
| Micha Kuster | 10/10 | 3281 days | 95% |
| Tim | 8/10 | 3297 days | 91% |
| Jendrik | 8/10 | 3297 days | 91% |
| Alice Frater | 7/10 | 3304 days | 86% |
| Jade Williams | 10/10 | 3317 days | 91% |
| Cora | 9/10 | 3558 days | 69% |
| Lauren Dinnage | 10/10 | 3566 days | 69% |
| Mike Munzenmaier | 9/10 | 3573 days | 67% |
| Matt Irwin | 8/10 | 3576 days | 66% |
| Annalies Beard | 8/10 | 3576 days | 66% |
| Laura Schafer | 9/10 | 3584 days | 66% |
| D Davey | 10/10 | 3593 days | 66% |
| Kirsten Gehrenbeck | 6/10 | 3595 days | 56% |
| Lucile Souday | 10/10 | 3604 days | 65% |
| Lisa Kalkert | 10/10 | 3605 days | 65% |
| David | 10/10 | 3605 days | 65% |
| Philip Piel | 9/10 | 3605 days | 64% |
| Miro | 6/10 | 3605 days | 55% |
| Chiara | 9/10 | 3605 days | 64% |
| Sabine Bergen | 9/10 | 3608 days | 64% |
| Annika Locker | 10/10 | 3611 days | 65% |
| Jess | 8/10 | 3642 days | 60% |
| Lilli Erni | 9/10 | 4275 days | 4% |
| Franz Birkefeld | 9/10 | 4276 days | 4% |
| Laina Black | 7/10 | 4296 days | 2% |
| Ricky White | 9/10 | 4296 days | 2% |
| Jennifer Garner | 9/10 | 4310 days | 1% |
| Philip Donachie | 10/10 | 4313 days | 1% |
| Klaus Petersen | 7/10 | 4315 days | 0% |
| Matthew Trezise | 10/10 | 4316 days | 0% |
| Lorraine Doyle | 10/10 | 4648 days | 41% |
| Lisa Blake | 9/10 | 4768 days | 41% |
| Jenben | 10/10 | 4782 days | 41% |
| David | 7/10 | 4782 days | 38% |
| Nikita Sue | 8/10 | 5049 days | 40% |
| Darren Ronchetti | 10/10 | 5052 days | 41% |
| Asha | 9/10 | 5087 days | 41% |
| Helen & Laurence | 9/10 | 5125 days | 41% |
| kirribilliangel | 10/10 | 5209 days | 41% |
| Dave van Bergen | 9/10 | 5357 days | 41% |
| Guult Ryan | 10/10 | 5379 days | 41% |
| Claire Colquhoun | 8/10 | 5380 days | 40% |
| Andy Johnson | 10/10 | 5384 days | 41% |
| Leanne Shepherd | 8/10 | 5385 days | 40% |
| Chris White | 10/10 | 5400 days | 41% |
| Jane & Regis | 7/10 | 5409 days | 38% |
| Invictus | 8/10 | 5574 days | 40% |
| craigy | 7/10 | 5605 days | 38% |
| Rob | 8/10 | 5675 days | 40% |
| David | 7/10 | 5691 days | 38% |
| Alzbeta Czech | 10/10 | 5772 days | 41% |
| Becky | 8/10 | 5779 days | 40% |
| Amer | 9/10 | 5783 days | 41% |
| Greg Gerritz | 8/10 | 5785 days | 40% |
| Chance McGuire | 10/10 | 5786 days | 41% |
| Hailey & Fin | 8/10 | 5798 days | 40% |
| pedawrds | 10/10 | 5837 days | 41% |
| thomash | 10/10 | 5842 days | 41% |
| asiacritics | 7/10 | 5848 days | 38% |
| Bue Verrept | 8/10 | 5855 days | 40% |
| canadianislandgirl | 7/10 | 5878 days | 38% |
| Ash Sturm | 9/10 | 5878 days | 41% |
| wileyman | 9/10 | 5909 days | 41% |
| clairet | 9/10 | 5957 days | 41% |
| ToryL | 9/10 | 5970 days | 41% |
| muriellef | 7/10 | 5974 days | 38% |
| katesh | 10/10 | 6047 days | 41% |
| caroldarren | 10/10 | 6092 days | 41% |
| Jake1 | 9/10 | 6094 days | 41% |
| HanT | 8/10 | 6101 days | 40% |
| Yvanna | 8/10 | 6111 days | 40% |
| EmmaL | 8/10 | 6125 days | 40% |
| AnthonyB1 | 8/10 | 6126 days | 40% |
| kiwibrit86 | 9/10 | 6135 days | 41% |
| Matt | 10/10 | 6141 days | 41% |
| SuenSwitzerland | 9/10 | 6151 days | 41% |
| Carolyn | 9/10 | 6154 days | 41% |
| Marcus | 8/10 | 6154 days | 40% |
| Kirsty | 10/10 | 6155 days | 41% |
| Fam | 9/10 | 6160 days | 41% |
| Hayley | 8/10 | 6166 days | 40% |
| Debbie Mossman | 9/10 | 6166 days | 41% |
| Alan | 8/10 | 6170 days | 40% |
| Claire | 10/10 | 6177 days | 41% |
| Spyfox | 10/10 | 6198 days | 41% |
| Sonja | 9/10 | 6205 days | 41% |
| Tim | 8/10 | 6212 days | 40% |
| Lorri S | 8/10 | 6216 days | 40% |
| lming60 | 10/10 | 6217 days | 41% |
| melissa | 10/10 | 6217 days | 41% |
| Vincent | 9/10 | 6222 days | 41% |
| Hanna | 5/10 | 6237 days | 30% |
| Henry | 8/10 | 6259 days | 40% |
| Laura | 9/10 | 6275 days | 41% |
| Dave | 9/10 | 6282 days | 41% |
| Anna | 8/10 | 6289 days | 40% |
| S D | 9/10 | 6306 days | 41% |
| Alex Paice | 9/10 | 6316 days | 41% |
| Nikki Gray | 9/10 | 6342 days | 41% |
| Kellie Teichmann | 10/10 | 6392 days | 41% |
| L1z4rd | 9/10 | 6411 days | 41% |
| Allie61 | 10/10 | 6457 days | 41% |
| Adam Richards | 9/10 | 6472 days | 41% |
| Nick | 9/10 | 6478 days | 41% |
| Andria Davis | 9/10 | 6485 days | 41% |
| Georgina Mulligan | 9/10 | 6485 days | 41% |
| catzmagic | 9/10 | 6485 days | 41% |
| Emily Houston | 7/10 | 6489 days | 38% |
| Nancy Dol | 8/10 | 6489 days | 40% |
| John Woodrow | 9/10 | 6493 days | 41% |
| Zara | 10/10 | 6501 days | 41% |
| Ed | 6/10 | 6501 days | 35% |
| Elle | 10/10 | 6501 days | 41% |
| Issy | 7/10 | 6501 days | 38% |
| Katharina | 10/10 | 6504 days | 41% |
| Juliet | 9/10 | 6505 days | 41% |
| paulonline | 10/10 | 6507 days | 41% |
| Marc Hertogs | 7/10 | 6508 days | 38% |
| Ash McNeil | 10/10 | 6508 days | 41% |
| Warren | 8/10 | 6532 days | 40% |
| Klaus | 9/10 | 6540 days | 41% |
| Ann Westmacott | 9/10 | 6566 days | 41% |
| Neil Cooke | 8/10 | 6574 days | 40% |
| Archie Murdoch | 8/10 | 6581 days | 40% |
| Orla | 8/10 | 6582 days | 40% |
| Andy Chapman | 8/10 | 6694 days | 40% |
| JanKovar | 7/10 | 6810 days | 38% |
| Magnus | 8/10 | 6822 days | 40% |
| Lorraine | 8/10 | 6828 days | 40% |
| Dan | 9/10 | 6833 days | 41% |
| Sarah | 8/10 | 6833 days | 40% |
| Richhouse | 8/10 | 6838 days | 40% |
| Emma Gareth | 9/10 | 6844 days | 41% |
| Karen Nellist | 10/10 | 6847 days | 41% |
| beesom | 9/10 | 6858 days | 41% |
| Janne | 7/10 | 6862 days | 38% |
| Frauke | 4/10 | 6864 days | 25% |
| Dave | 10/10 | 6869 days | 41% |
| RosalindBoyes | 7/10 | 6869 days | 38% |
| Hanna | 8/10 | 6870 days | 40% |
| LisaAllen | 10/10 | 6883 days | 41% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Skyline Luge Rotorua experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-4.07% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 days. However the Skyline Luge Rotorua experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Skyline Luge Rotorua experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
Balancing Adjustment
2.23% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
85%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.